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Mozilla Releases Firefox 18

January 9, 2013 • By

Yesterday Mozilla officially launched their new update to Firefox bringing it to the 18th edition. They released updates for Windows, Mac, Linux, and Android. Among other things the improvements include a new JavaScript compiler, preliminary WebRTC as well as Retina support (on Macs).

The main emphasis of this release was largely focused on speeding up Firefox, as mentioned above Firefox 18 also saw the release of  a new faster JavaScript JIT compiler dubbed “IonMonkey.” IonMonkey will be replacing the older TraceMonkey and joins JagerMonkey as one of the two JIT compilers that make up Firefox’s SpiderMonkey JavaScript engine.

This is what’s new in Firefox 18:

  • NEW: Support for Retina Display on OS X 10.7 and up.
  • NEW: Preliminary support for WebRTC.
  • CHANGED: Experience better image quality with our new HTML scaling algorithm.
  • CHANGED: Performance improvements around tab switching.
  • DEVELOPER: CSS3 Flexbox implemented.
  • DEVELOPER: Support for new DOM property window.devicePixelRatio.
  • DEVELOPER: Support for @supports added.
  • DEVELOPER: Improvement in startup time through smart handling of signed extension certificates.
  • HTML5: Support for W3C touch events impemented, taking the place of MozTouch events.
  • FIXED: Disable insecure content loading on HTTPS pages (62178).
  • FIXED: Improved responsiveness for users on proxies (769764).
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